Pokémon: the World Where Pokémon Come

After Lin Mu fell asleep once, he was dragged into the void of consciousness by Arceus. He learned that Pokémon had arrived in the parallel world, and Arceus found Lin Mu in the hope that Lin Mu could help him go to the parallel world to educate the elves about it, so that humans and elves could live in peace and stop killing each other. Lin Mu was sent to a parallel world by Arceus to carry out a science popularization mission. But gradually, Lin Mu discovered that more than just Pokémon appeared in this parallel world...